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The electron shell is also called the principle energy level in chemistry and atomic physics. The shells starting closest to the nucleus names go from shell 1 or shell K, shell 2 or shell L,shell 3 or shell m, etc. Each shell contains a certain amount of electrons the first shell starts with two and the number increases for each shell.

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If an element is chemically active what is the state of its outer electron shell?

The key to "happiness" for an atom is a full outer electron shell. (The outer electron shell is called the valence shell.) There are two conditions that cause a shell not to be full. Either it has only an electron or two (or three) in the outer electron shell or it's short an electron or two in that outer shell. The direct answer to the question is that if an element is chemically active, its outer electron shell is incomplete or is not full.


Does lithium have a full outer shell?

no it only has 1 electron in the outer shell


What is the electron called when the electrons in the outer shell of atoms?

These are the valence electrons.


What are electrons in the outer electron shell of an atom are called?

Valence Electrons


Outer shell electrons is known as?

The outer shell is called the valence shell


How many electron pairs are in the outer shell of nitrogen?

Nitrogen has 5 electrons in its outer shell, so there are 3 electron pairs in the outer shell of nitrogen.


What is the outside edge of an atom called?

I believe it's just the outer shell. It is where the outer electrons are contained.


How many electrons are in the outer shell of sodium lithium and potassium?

Lithium and potassium are both alkali metals. Thus their outermost orbitals are filled up to s1. So, that shows us that they both have only one outer level electron each.


How many electrons do alkalai metals have in their outer shell?

Alkali metals have 1 electron in their outer shell.


How can you get an ion of bromine?

Bromine has 7 electrons in its outer shell and needs to gain one electron to have a full outer shell and become an ion. It will gain this electron from an atom that has one electron in its outer shell such as Lithium or Sodium.


How many electrons are in the outer shell of cobalt?

There is one electron on cobalts outer shell.


Sodium has one electron in its outer shell According to the octet rule?

Sodium has one electron in its outer shell, so it tends to lose that electron to achieve a full outer shell. This makes sodium more stable as it follows the octet rule by having a complete outer electron shell with eight electrons.